US Bridges

Nfa A250 over Buffalo Creek

Good

Carter County, Tennessee · E of SR67-N of SR359 Jct. · Structure no. 100A2500001

Built
2022
3 years old
Condition
Good
inspected June 2023
Type
Arch - Deck
Concrete
Length
54 ft
1 main span
Daily traffic
420
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa A250 over Buffalo Creek is a concrete arch - deck carrying Nfa A250 over Buffalo Creek in Carter County, Tennessee. It was built in 2022, so it is 3 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 420 vehicles a day, roughly 2% of them trucks, projected to reach 672 by 2042. The structure is 54 ft (16.5 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNfa A250
CrossesBuffalo Creek
LocationE of SR67-N of SR359 Jct.
RouteCounty Highway 250
Coordinates36.30707, -82.29189
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckSteel plate
Main spans1
Design loadHL 93
Structure length54 ft (16.5 m)
Longest span54 ft (16.5 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic420 (2020)
Projected traffic672 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A250 over Buffalo Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is Nfa A250 over Buffalo Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Nfa A250 over Buffalo Creek carry?

About 420 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A250 over Buffalo Creek?

The structure is 54 ft (16.5 m) long with a longest span of 54 ft (16.5 m) and a deck 28 ft wide.

Who owns Nfa A250 over Buffalo Creek?

It is owned by the City or Municipal Highway Agency.